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Class 10 Book Solution from Amitava Mitra in Theorems related to Angles in a Circle Question No: 12.2(1)(b)

ABC ত্রিভুজের পরিকেন্দ্র O ; যদি \(\angle BAC=85^o\), \(\angle BCA=75^o\) হয়, তাহলে \(\angle AOC\)\(\angle OAC\)-এর মান কত ?

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